News & Analysis as of

Obviousness DuPont

Sterne, Kessler, Goldstein & Fox P.L.L.C.

PTAB Strategies and Insights - October 2018: DuPont v Synvina: Burden Can Shift To Patent Owner At The PTAB And Petitioner Must...

A recent Federal Circuit decision (DuPont v. Synvina) addressed two key issues in PTAB proceedings: burden shifting and standing to appeal....more

Knobbe Martens

E.I. Dupont De Nemours & Co. v. Synvina C.V.

Knobbe Martens on

Federal Circuit Summary - Before Lourie, O’Malley, and Chen. Appeal from the Patent Trial and Appeal Board. Summary: When the ranges identified in a claimed composition overlap with the ranges disclosed in the prior...more

Jones Day

In an IPR, the Burden of Persuasion in an Obviousness Challenge Never Shifts to Patentee

Jones Day on

On March 3, 2017, in a final written decision in IPR2015-01838, the PTAB rejected an obviousness challenge brought by DuPont against a patent owned by Furanix Technologies B. V. directed to methods for preparing the known...more

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